York S1-1474-0041 Ignition Module R-410A making it a staple for

making it a staple for maintaining system integrity in demanding environments

Often referenced as reaching the same technical specifications as the Aaon 27099 switch

this kit prioritizes mechanical integrity and long-term pressure retention in high-demand environments

The construction utilizes Teflon stem packing and EPDM glass seals to ensure leak-free performance under thermal cycling

this component provides the heavy-duty reliability required for both residential and commercial steam heating renovation projects

York S1-1474-0041 Ignition Module R-410A making it a staple forAs a veteran in the field, you know that intermittent ignition issues on mid 80s to mid 90s Coleman units often trace back to a failing York S1 1474 0041 Ignition Module. This genuine OEM HSI control board is the designated replacement for Fenwal 1474 001 and Fenwal 1474 002 series modules. It is engineered specifically for direct flame sense systems, meaning it monitors the burner through the igniter itself without a secondary sensing rod. This